Insecticide sprayer



Feb. 1936- A. R.. LAVlTT 'ET AL ,0

' INSECTICIDE SPRAYER Filed May 15, 1954 Patented Feb. 11, 1936 YuNiTEo "STATES 'INSECTICIDE SPRAYERQ Albert R. Lavitt and Homer L..Pearson,

7 .Denver, Colo, 7 Application May 15, 1934, Serial No. 725,682

' 5 3Claims. o 299 -81-1 This invention relates to a sprayer or atomizer, more particularly designed for spraying insecticide upon the plants in greenhouses, conservatories and the like.

The principal object of the invention is to provide a device of this character which can be permanently affixed to the steam heating pipe mains of a greenhouse so that the heating steam can be employed for atomizing, diluting, and spraying the insecticide.

Other objects of the invention are to provide a device of this character which, while permanently installed, can be moved or directed to cover a wide area; in which bottles or containers of insecticide can be easily and quickly placed in position; which will occupy but a minimum of space when in use; and which will be neat, compact, and economical to manufacture.

Other objects and advantages reside in the detail construction of the invention, which is designed for simplicity, economy, and eiiiciency. These will become more apparent from the following description.

In the following detailed description of the invention reference is had to the accompanying drawing which forms a part thereof. Like numerals refer to like parts in all views of the drawing and throughout the description.

In the drawing:

Fig. 1 illustrates the improved insecticide sprayer as it would appear when attached to the steam main of a eenhouse or similar installation.

Fig. 2 is a side elevation thereof, partly in section, illustrating the interior construction.

A typical steam main pipe such as used in greenhouses is indicated at It). The invention comprises a tubular head member I I, closed at its top by means of a removable screw cap I2. The head I I is supported upon a valve housing I3 by means of a suitable union nut I4,

The valve housing carries a valve I5 by means of which the supply of steam to the head may be controlled. The entire device is supported upon a nipple I6 extending from the main I0. If necessary a reducing fitting I I may be employed to. seal the valve housing I3 to the nipple I6.

A blow pipe I8 extends outwardly at a slight upward angle from the head II and terminates in an atomizing shield I9. The atomizing shield supports a suction tube 20. The discharge opening of the blow pipe I8 is positioned opposite the discharge orifice of the suction tube 20 to obtain a suction and vacuum eifect at this point similar to the usual atomizer. passes through a guide ear 2I on the shield I9 and is rigidly suported in place by means of a post 22 secured to the shield.

A bracket member 23 extends from the head II outwardly and downwardly to suport a suitable container or bottle 24 in which the insecticide or other material to be atomized is carried. The suction tube 20 extends downwardly into the bottle 24 through a threaded bottle cap 25, which is provided with a funnel-like depression 26 about the tube 20. The bracket member 23 is preferably formed with a downwardly extending bot-' tom hook 21 which extends beneath and supports the bottle 24 in place. It is preferred toform the bracket member 23 of spring metal so that, after removing the cap 25, the bottle can be removed or replaced by springing the hook 21 to one side.

In use the union nut I4 need not be screwed to a tight clamping position, but may allow sufficient looseness so that the head II can'be rotated to project the blow tube I8 in any desired direction. A screen 28 is positioned in the head I I to screen foreign materials from the incoming steam. A suction screen 30 is positioned on the lower extremities of the suction tube 20 to screen the incoming insecticide of foreign materials.

In a greenhouse installation, the devices would be positioned at convenient points along the main I so that the spray therefrom could reach all desired plants. Should any section of plants require spraying, it is only necessary for the operator to open the valve I and direct the blow tube I8 toward that section. Any imperfectly atomized solution collecting in the shield I9 will drain down the tube 20 into the funnel-like depression 26 in the cap 25, and return to the bottle 24.

While the invention has been described as particularly applied to greenhouse use, it is 01' course not limited to this particular use, nor is it limited to the use of steam for atomizing, as it would operate equally well with compressed air. It will be also found useful for spraying many varieties of liquids and solutions.

While a specific form of the improvement has been described and illustrated herein, it is desired to be understood that the same may be varied, within the scope of the appended claims, without departing from the spirit of the invention.

Having thus described the invention, what is claimed and desired secured by Letters Patent is:-

The suction tube 20 1. A sprayer unit comprising: a vertical cylindrical pressure head; a blow pipe extending outwardly from said head; an atomizer carried at the outer extremity of said blow pipe; a suction pipe extending downwardly from said atomizer; a bracket member clamped about said pressure head and extending outwardly and downwardly therefrom; a receiving socket formed in said bracket member; a liquid container supported in said socket about said suction tube, saidsocket comprising: a band surrounding said container; and a hook member extending downwardly from said band and beneath said container.

'2. A sprayer unit comprising: a vertical cylindrical pressure head; a blow pipe extending outwardly from said head; an atomizer carried at the outer extremity of said blow pipe; a suction pipe extending downwardly from said atomizer; a bracket member clamped about said pressure 20 head and extending outwardly and downwardly therefrom; a receiving socket formed in said bracket member; a liquid container supported in said socket about said suction tube; and means for attaching said pressure head to a source of pressure.

3. A sprayer comprising: a horizontal pressure pipe; a nipple extending upwardly therefrom; a valve supported by said nipple; a rotatable connection supported by said valve; 2. vertical cylindrical pressure head supported by said connection; a removable cap closing said pressure head; an atomizing tube extending outwardly and upwardly from said pressure head; an atomizer carried at the outer extremity of said atomizing tube; a suction tube extending downwardly from said atomizer; a container about said suction tube; and a bracket extending from said pressure head to support said container.

ALBERT R. LAVI'IT. HOMER L. PEARSON. 

